thanks @all :-)
@plasticmotif
I use step-sharpening in PS. I used to export the full resolution Image to PS and sharpen them in 4 steps. Now i let LR resize the image to 6mp, then i apply a 3-step script, i am at my girlfriends right now, else i would post a screenshot of the script.
Denoir was the one who made me aware of how it works, have a look http://www.fredmiranda.com/forum/topic/936822/0&year=2010#8846510 (i wasn't too happy with that exact script though).